Untreated wood surfaces:
Clean the surface from dirt, dust and loose material with steel or scrubbing brush. Wash mould off with Tikkurila Mould Removal or Tehopesu Super Clean according to instructions. A priming coat of Valtti Pohjuste priming oil should be applied in as early construction phase as possible. Protect plants from splashes of Valtti Pohjuste.
Previously with a transparent product treated wood surfaces:
Remove all loose material and greyed flaking layers with a scraper and/or steel brush. Clean the surface and wash with Tikkurila Mould Removal or Tehopesu Super Clean, if needed. If a clear, possibly gloss film remains on the surface, remove it or at least sand it thoroughly. Protect plants from splashes of Valtti Color Extra.
For sealing the window pane and window frame interface, use good quality non-setting glazing compounds, which form a protective skin, in accordance with manufacturer’s instructions. Particular attention with regards to preparation should be given to wood such as Oak, Teak, Cedar, Douglas Fir, Mahogany and Idigbo, etc., which contain oil and water-soluble tannin which may impair the drying, hardening or adhesion of surface coatings.